OFDM Relay Cognitive Radio Multiple Antennas Synchronization Full duplex CDMA Resource Allocation Channel Estimation Spectrum Sensing Spectrum Sharing Interference Cancellation Stochastic Geometry Feedback Neural Networks Bi-Directional Energy Harvesting Heterogeneous Networks Equalizer Femtocell FBMC relay networks Equalization Device-to-Device (D2D) in-band full-duplex system interference Ultra Low Power Handoff Ultra-dense small cell Cell Search Duplex channel capacity mode selection 5G TVWS HetNet Channel estimation error SC-FDMA interference suppression multi-spectral bursty traffic model achievable sum rate outage probability selection diversity OQAM Bi-directional full-duplex User association MIMO self interference cancellation Outdated channel estimation Subband filtering intercarrier interference MPA detector Cognitive relay networks full-duplex relay Latency Spectral efficiency telecommunication traffic cellular radio timing misalignment quality of service Heterogeneous channel estimation capability Simultaneous Sensing and Transmission automatic repeat request (ARQ) self-interference cancellation Two-way communications transmission capacity (TC) Correlated MIMO sensing duration full-duplex cellular 5G mobile communication antenna arrays Poisson arrival System level simulation health care Zigbee body area networks Waveforms Traffic OCBT resource block management Time-division duplex Capacity UFMC frame structure QAM intersymbol interference CFO End-to-end delay SCMA Full-duplex GFDM mMTC Empty cell Power control inter user interference WVAN Timing and frequency offset On/off algorithm Short burst transmission ultra-dense small cell network